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Brushless conversion of (Strimmer) Weed Whacker

Old 07-17-2019, 02:30 PM
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solentlife
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Default Brushless conversion of (Strimmer) Weed Whacker

I have a few worn out petrol powered strimmers and I've been wondering if its possible to convert to BL E-Motor .....

My boat channel needs clearing of weeds and reeds .... so I wondered if I could convert one of them to mount on side of a dinghy to cut the weeds. Power could be from genny with voltage reducer to give unlimited run.

Given a medium sized Strimmer - what sort of BL motor would be needed ?? It would have to spin up the metal blade - not the nylon line.
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Old 07-18-2019, 07:36 AM
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CHELLIE
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Originally Posted by solentlife View Post
I have a few worn out petrol powered strimmers and I've been wondering if its possible to convert to BL E-Motor .....

My boat channel needs clearing of weeds and reeds .... so I wondered if I could convert one of them to mount on side of a dinghy to cut the weeds. Power could be from genny with voltage reducer to give unlimited run.

Given a medium sized Strimmer - what sort of BL motor would be needed ?? It would have to spin up the metal blade - not the nylon line.
maybe this might help Nigel
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Old 07-18-2019, 09:02 AM
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solentlife
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I have a couple of garden irrigation pumps (220v) that the pumps are shot ... but the motors are still OK.

Maybe I can graft one of those onto a whacker shaft and then run the Genny I have in the boat.

The other alternative is to get a long shaft Hedge Trimmer ... but I notice most have the e-motor near the cutting end ... so would need to be gasoline type.

Tks Chellie ... interesting ... just wondering why he did that - as an electric shop bought similar to what he has is not expensive ?
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Old 07-18-2019, 12:08 PM
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To show my reason for all this :



closing off entrance from river ...







I'd use the yacht to clear a channel through - but starter motor has burnt out and having trouble getting replaced / rewound.
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